Magazine loader



Oct. 19, 1948. A. H. UGLUM MAGAZ INE!v LOADER Filed Jan. 9, 1945 ALFREDH UELUM,

maffia/MM www Patented Oct. 19, `-194:8 v

EFICE MAGAZINE LOADER Alfred H. Uglum, Waterville, Iowa ApplicationJanuary 9, 1945, Serial No. 572,044

l Claim. (Cl. 86-47) (Granted under the act of- March 3, 1883, asamended April 30, 1928; 370 0. G. 757) i 2 The invention describedherein may be manu- Figure l, is constrained into movement downfacturedand used by or for the Government for ward by means of gravity andsecurely though governmental purposes Without the payment t iOOSely heldin the Channel i5. The laCeWay IU me of any royalty thereon. iS made anyConvenient length to accommodate This invention relates to machines forloading the desired number of cartridges I2 as shown. cartridges intomagazines. The raceway I 0 is open at the bottom, permitting A purposeof the invention is to provide a mathe cartridges to drop by gravityonto a guiding chine by means of which magazines for sub-maramp 25formed by plates 26 and 28 as Shown in chine guns and the like may bequickly, easily Figuresl and 5. and automatically loaded withammunition. A vertically reciprocating plunger 30, of rec- Otherpurposes of the invention will become tangular cross section, isarranged to slide in a apparent from the following description andchamber 32 open at the top and bottom and drawingg formed between thesides 34, 36, 38 and 40. The

Reference is now had to the drawings in which: top 42 of the plunger 30is arranged to recipro- Figure 1 is a front elevational view of a mal5cate to a low position at the base of the inclined chine embodying theinvention; ramp portion 28 as shown in Figure 1 and Fg- Figure 2 is across sectional view taken along ure 2, with all its travel above thispoint. the line 2-2 of Figure l; A shaft 44 having an external turningcrank Figure 3 is a sectional view taken along the line 46 and handle 48is rotatably arranged in two 3 3 of Figure 1; 2o horizontal bearings 50and 52 formed in the ver- Figure 4 is a sectional view taken along thetical members 54 and 40, bearing 52 being made line 4 4 of Figure l, andremovable as shown for easy insertion of shaft Figure 5 is an enlargedcut-away detail view of 44 therethrough. An internal crank 56 is formedthe mechanism and cartridges as they enter the by bending shaft 44 asshown in Figure 2. A magazine. COHDeCtng rod 58 has its upper endpivotally In the use of sub-machine guns like the connected to the lowerend of the plunger by Thompson cal. .45 sub-machine gun, it isnecesmeans of a pivot pin B0 inserted through a horisary to load themagazine or clip with the car- ZOntal bOI'e passing thlOugh both theconnecting tridges. While this may be done by hand for rod 58 and theplunger 30 as shown in Figures loading one clip, it becomes a tediousand some- 30 1 and 2. The lower end of the connecting rod what tiresometask when a great many yclips are 58 has a U-shaped transverse groove B2to accomto be loaded. One reason is the fact that the modate the crank56, and a pin 64 thrOugh its cartridges have to be forced into the clipagainst projecting ends to retain the crank in the the resistance of aninternal spring, and the regroove 62. sistance of the spring increasesas more and more It is thus apparent that turning the handle cartridgesenter the clip. The present invention 48 in a clockwise direction asindicated by the shows a mechanism by which the process of clip aTIOW 6BWill Cause the plunger 30 110 reciprocate loading is greatly facilitatedand improved. Vertally.

In Figure 1, a vertically arranged raceway IIJ The column of cartridgesI2 in the raceway I0 is adapted to hold a number of cartridges I2 in a40 forces the lowest cartridge into the POStiOn 68 vertical column asshown. A back plate Ill is Where it rests directly on the top 42 of theformed into a U-shaped channel i5 as also shown Plunge? 30- in Figure 3,just deep enough and wide enough A magazine or clip 10 of the usual typeemto receive the rims I6 of the cartridges I2. Face plOyed in theThOmDSOIl Sub-mhine gurl iS inplates I8 and 2l! fastened against backplate Ill 45 serted, open end downward, into the machine as haveextensions 22 and 24 projecting inwardly shown. The frame of the machineis formed as over the front of the channel I5, the extensions shown,with a side wall 'I2 and a back wall I4 having their projecting edgesbeveled as shown which is formed with a channel as shown in Figin Figure3 to fit loosely in the rim groove of the ure 3 extending upwards fromthe line 'I6 of Figcartridges I2, thereby holding the cartridge rims 50ures 1 and 2, to accommodate the rear longituin the channel I5 as shown.Faceplate 20 has a dinal projection 'I8 of the clip l0. A stud 80 lowerextension 2| rounded as shown, to guide formed in the wall 12 serves tohold the top of the cartridges as they fall onto the ramp 25 and theclip 10 in the machine as shown, and to keep them inline. preventvertical movement thereof. A curved Thus the column of cartridges I2 asseen in 55 depression 82 is formed in wall l2 to permit the upper rim 84of the clip 10 to enter without interference. The wall 'I2 is also cutaway as shown at 86 so the clip may be held with the ngers as it isinserted and withdrawn from the machine. The right hand lower lip B8 ofthe clip is supported as shown in Figure 5 by the curved portion of thewail v'12.

With the clip 10 in place and the raceway l0 full of cartridges as shownin Figure 1, the handle 48 is turned continuously in a clockwisedirection. The plunger 30 forces cartridge 68 upwards into the loweropening of the clip 10, forcing it in againstl the resistance of theprojection -90 of the spring follower inside the clip. As the `handle 48is turned again, the neXtcartridge,

having rolled onto the top of plunger 30, is also forced upwards intothe clip, and so on as seen in Figure 5, until the clip is full, 'whenit -is removed from the machine by gripping atthe position of the cutout85 and pullingsidewise.

The top 42 of the plunger 3D may be at. as shown, or may have a-shallow-transverse'groove 92 as'shown `in Figure 5 -to Vpartly receive Vtherounded side of the cartridge. The-upper portion an open end, includinga support for holding a magazine with open end downward, means arrangedon said support beneath the open end of said magazine for pressing acartridge upwardly into the magazine comprising a plunger mounted forvertical reciprocating movement, a rotatable shaft disposed''beneathythe plunger, a crank on said shaft, a connecting rod rotatably connectedat its lower end to said crank and pivotally connected at its upper endto said plunger, and means for rotating said shaft, and gravity actuatedmeans carried by said support for delivering cartridges one by one ontosaid plunger comprising a hopper elevated relative to the said plungerprovided with vertical guide grooves for slidably engaging the rims ofcartridge cases to maintain the cartridges in alignment one above theother and a passageway .communicating at an angle with said hopperadjacent the bottom of the vertical guide grooves for deliveringcartridges one by one from the guide grooves to the top of said plunger.

ALFRED H. UGLUM.

REFERENCES CITED The following references are of record in `the 'file ofth-ispatent:

UNITED STATES PATENTS Number Name Date 771,491 Parkhurst Oct. 4, 19042,402,195 Woodberry et al. June18, 1946 lFOREIGN PATENTS Number CountryDate 694,582 Germany Aug. 3, 1940

